Dinosaurs from the Morrison Formation

A Hallopus is looking for eggs. It knowas that this is the sauropod nesting ground so it is prime hunting teritory. It is small so it needs to watch out for predators. It hears an Ornitholestes. It assumes it has found a large patch of eggs. When it reaches to where it heard the Ornitholestes, it sees nothing. Just as it was leaving, the Ornitholestes came. It attacked and killed the Hallopus.